Appareil téléphonique comprenant un amplificateur à transistron incorporé,申请号FRD1154982-传众专利搜索

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发明名称	Appareil téléphonique comprenant un amplificateur à transistron incorporé
摘要
申请公布号	FR1154982(A)	申请公布日期	1958.04.18
申请号	FRD1154982	申请日期	1956.07.18
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H04M1/60	主分类号	H04M1/60
代理机构		代理人
主权项
地址

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